Patents Examined by Willard E. Hoag
  • Patent number: 5027743
    Abstract: In an apparatus for applying liquid, pasty or plastic substances, particularly thermoplastic substances, to a substrate with a device for melting the substances and a feed head for transferring the melted substances to the substrate via at least one nozzle orifice, the device for melting the substances comprises a melting container and a pressure container connected thereto. In order to facilitate melting, heat exchanger surfaces, particularly heat exchanger tubes are arranged in the melting container.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: July 2, 1991
    Inventor: Volker Ludwig
  • Patent number: 5024558
    Abstract: A mold for making articles that are interconnected by a lanyard, such as inflator parts. A mold base has a channel formed in it, and a first block is slidably mounted in that channel. A groove formed in the block defines the contour of a first article produced by the mold when plastic is injected into the groove and a mating groove formed in a mold cover that overlies the base. A stationary second block, also disposed in the channel, has a cavity formed in it that defines the contour of a second article. Opposite ends of the lanyard are positioned in the respective areas bounded by the grooves and cavity so that the opposite ends of the lanyard are embedded in the articles produced by the mold. The length of the interconnecting lanyard is adjusted by adjusting the position of the moveable block within the channel. The movable block may also be stationery.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: June 18, 1991
    Inventor: Glenn H. Mackal
  • Patent number: 5024798
    Abstract: Method and apparatus for making multiconductor electrical cable termination assembly and method of making the same having an integral structural combination of a multiconductor electrical cable, a plurality of electrical contacts, and a housing part that is molded about at least a portion of each of the contacts and a portion of the cable. Each contact forms a function with a respective conductor of the cable, and the integral housing part is molded with the assistance of a mold core under elevated temperature and pressure conditions so that each of the junctions is fully encapsulated by the molded body part to create a hermetically sealed junction zone which is free of air, moisture, oxygen, and other like deleterious contaminants, and which helps to prevent the contamination of the function when the cable termination assembly is utilized in a hostile environment.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: June 18, 1991
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Randy G. Cloud, David A. Pretchel
  • Patent number: 5022839
    Abstract: A device for cleaning a molding tool in a plastics processing machine, for example the molding tool of hydraulic presses for pressing molded components from fiber reinforced plastics. The device including a cleaning tool which can be brought to at least one of the surfaces to be cleaned in at least one of a male mold and female mold of the molding tool. In order to be able to perform automatic cleaning of the molding tool in a minimum amount of time and simultaneously avoid the danger of damage to the tool and the machine, the cleaning tool is provided with a holder which is disposed at a carrier of the molding tool, with the movement of the holder being synchronized with the operating stroke of the machine.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: June 11, 1991
    Assignee: Fried. Krupp GmbH
    Inventor: Richard Brussel
  • Patent number: 5022840
    Abstract: An agglomeration device having a rigid cylindrical casing in which a shaft rotates having outer end portions of reduced diameter. The larger diameter portion of the shaft has relatively small rotating rings at the ends thereof which rotate in notched out cavities of plastic rings which are stationarily fixed to end plates of the agglomeration device. Triple labyrinth seals surround end portions of reduced diameter of the rotating shaft.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: June 11, 1991
    Inventor: Carl A. Holley
  • Patent number: 5022841
    Abstract: The die essentially comprises a top chain and a bottom chain entrained between horizontal parallel axis gear wheels and having corresponding sliding portions contacting one another.The top chain defines at a central position, by inner and outer links thereof, substantially dihedral structures, forming open seats therealong can slide the two portions of a sugar drop forming die.The bottom chain, in turn, defines like dihedral structures the corner portions of which are adapted to cut a sugar bead, means being moreover provided for clamping the two portions of the die.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: June 11, 1991
    Inventor: Francesco Rizzi
  • Patent number: 5020472
    Abstract: A coating device for coating corrosion protection wax on a lower surface of a floor panel of a vehicle transferred by a conveyer comprises first robots for coating the wax on a first area formed within the lower surface at opposite peripheral portions to extend in a transfer direction in which the vehicle is transferred, and second robot for coating the wax on a second area formed within the lower surface of the floor panel to intervene between the first area. The first and second robot are arranged in serial in the transfer direction. The wax can be surely and uniformly coated on the first and second areas and coating work can be completed quickly.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 4, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Hiroshi Kiba, Hajime Akeno
  • Patent number: 5018959
    Abstract: This invention relates to a device for the production of grate constructions. In general, such constructions are manufactured manually by connecting transverse ribs to elongated supporting means by welding. Grate constructions can be manufactured automatically at a single step by means of an extruder known from pipe manufacturing techniques. Chill moulds moving in the production direction are thereby modified in such a manner that the chill moulds comprise at least two moulding spaces communicating with each other by means of conduits.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: May 28, 1991
    Assignee: Uponor N.V.
    Inventor: Jyri Jarvenkyla
  • Patent number: 5018957
    Abstract: An assembly of air heaters and reciprocally movable air driven staking tools is provided for use in the assembly of pieces using thermally softenable and pressure deformable studs. The air heaters and air driven staking tools are assembled in a supporting structure through which air is circulated to cool the staking tools to limit adhesion of hot softened material to the working face of each staking tool. The air heaters and air driven staking tools are individually selectable and controllable to meet the requirement of each workpiece to be hnot staked. The method of operating the hot staking assembly is also disclosed.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 28, 1991
    Assignee: J R Automation Technologies, Inc.
    Inventors: Kenneth Assink, Mark J. Feenstra, Gerald L. Boyer, Jr.
  • Patent number: 5018962
    Abstract: An injection molding die apparatus for use in the production of an optical disk substrate has a stationary die part having a mirror-finished surface, a movable die part carrying a stamper, an outer peripheral ring slidably fitting on the outer periphery of the movable die part and contactable with the stationary die part when the movable die part has been moved close to the stationary die part, such that a die cavity to be charged with injected molten plastic is formed by the mirror surface of the stationary die part, the stamper and the outer peripheral ring.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: May 28, 1991
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Takehiko Kitamura, Hirosato Amano, Masaharu Kaita
  • Patent number: 5018961
    Abstract: A hydraulic closing unit, particularly for injection molding machines which process plastics material. The closing unit includes a mold clamping plate which is slidably guided on guide columns between a stationary support plate and a stationary mold clamping plate. An annular main piston acts on the slidable mold clamping plate with a high mold closing force in mold closing direction. The main piston is axially slidably guided in the stationary support plate and load can be applied to both sides of the main piston. At least two coupling planes are provided between the main piston and the central pressure column. The coupling planes are mounted spaced apart and one behind the other in sliding direction of the slidable mold clamping plate. The main piston and the pressure column are slidable relative to each other over the distance range between the coupling planes.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: May 28, 1991
    Assignee: Battenfeld GmbH
    Inventors: Manfred Miese, Ernst Mai
  • Patent number: 5017111
    Abstract: A tire press for vulcanizing a tire includes two rotationally symmetrical vulcanizing tools which are situated inside the tire in the working position thereof and which have a tool diameter greater than the diameter of the tire. The tire press further includes an apparatus for introducing the tire into the tire press. The apparatus has a carrier; a moving and guiding mechanism for displacing the carrier parallel to the press axis and also in a plane perpendicular to the press axis between a tire-receiving position and a position at the vulcanizing tools; an auxiliary frame mounted on the carrier to be pivotal with respect thereto about an axis perpendicular to the press axis; and a tool mounted on the auxiliary frame for grasping one of the two tire beads.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 21, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Gunter Drewel, Horst Enoch, Klaus Grotkasten
  • Patent number: 5017125
    Abstract: An apparatus for feeding a label into a mold cavity of a bottom tool which can move up and down in a apparatus for thermoforming plastic containers from a film includes a feeder for the intermittent advancement of a strip of labels by a predetermined amount, a cutting means for cutting off a single label each time from the leading edge of the label strip, and transport means for transferring the single label to a final position in the mold cavity in which it lies against a side wall of the mold cavity and is held in place. The transport means is a transfer arm which grips the label strip and before the label is out off and, after it is cut off, carries it over the top edge of the mold cavity of the bottom tool while the latter is in its bottom, starting position, and lays it against one side wall of the mold cavity.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: May 21, 1991
    Assignee: GEA Finnah GmbH
    Inventor: Josef Finnah
  • Patent number: 5015165
    Abstract: In a tire vulcanizer, a single long-stroke cylinder is mounted at the central position of a top frame, and is supported to a mounting frame fixedly mounted on the top frame rather than being fixed directly to the top frame. Furthermore, a centering mechanism for a pressure plate is provided between the pressure plate and each of opposed side frames so as to adjust the levelness of the pressure plate with respect to both the longitudinal and transverse directions of the pressure plate.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: May 14, 1991
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Keiji Ozaki, Seisuke Fukumura
  • Patent number: 5011392
    Abstract: An ejector in a tire vulcanizing machine for ejecting the condensate of vulcanizing steam accumulated within a bladder to the outside of a tire includes a drain extraction pipe elevatably and rotatably supported in the machine and extending through a lower ring and a guide ring for clamping a lower edge portion of the bladder, a drain suction pipe extending horizontally from the top end portion of the drain extraction pipe and having its tip end portion bent downwards, an elevation drive and a rotary drive for the drain extraction pipe, and a rotary limit adjusting mechanism provided in the rotary drive. Preferably, the rotary drive is made up of a rotary shaft of a rotary cylinder mounted to the bottom end portion of the drain extraction pipe so as to be supported in an axially movable manner and a body of the rotary cylinder surrounding the rotary shaft.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 30, 1991
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Sumitomo Rubber Industries Ltd.
    Inventors: Hideaki Katayama, Toshifumi Murakami, Koji Soeda, Yoshiya Kubota, Shoji Okamoto, Akinori Kubota, Michihito Kobayashi, Masaaki Ijiri
  • Patent number: 5007820
    Abstract: A machine for kneading dough portions into a round shape is provided with a kneading drum adapted to be driven in the peripheral direction and in the direction of an axis. The kneading drum is concentrically enclosed by a compartmented drum adapted to be rotatingly driven in a peripheral direction and has kneading chambers open radially outwardly and radially inwardly towards the kneading drum. Furthermore, the compartmented drum has, looped around a portion of its periphery, in a belt contact zone, a kneading belt which presses the dough portions against the kneading drum and prevents them from falling out of the kneading chambers.The kneading belt can be driven by a positive drive which is independent of bearing forces between the kneading belt and the surface of the compartmented drum, whereby the kneading belt no substantial bearing forces on the belt contact zone of the compartmented drum.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: April 16, 1991
    Assignee: Werner & Pfleiderer, GmbH
    Inventors: Wilhelm Schwab, Gerhard Muller
  • Patent number: 5007814
    Abstract: A device for separating and closing a split mold that comprises a base, a stationary platen, and a movable platen extending upward from the base and oriented to oppose each other, electromagnets, a hydraulic cylinder, and a control panel. The movable platen is capable of movement toward and away from the stationary platen by the hydraulic cylinder. The stationary platen has the electromagnets mounted thereon and the movable platen has the electromagnets mounted thereon. In the use of the device, the mold is positioned upon the base such that the first half is positioned against the stationary platen. The movable platen is moved against the second half and the electromagnets are activated. The movable platen is then moved away from the stationary platen, and the mold halves are held against their respective platens by the attractive forces of the electromagnets. Mold halves are thus separated by the movement of the platen away from the stationary platen in activation of the electromagnets.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: April 16, 1991
    Inventors: Raymond L. Saunders, Joseph M. Forrestal
  • Patent number: 5008051
    Abstract: A vacuum system for a vacuum sizing tank utilizing electronic controls to maintain the proper negative pressure within the tank. A transducer measures the tank's vacuum. An electronic circuit compares the measured value with the preset value. Any discrepancy between the two undergoes resolution by varying the voltage applied to the variable-speed d.c. controlled vacuum pump. The resulting changes in the motor's speed brings the tank's vacuum to the desired magnitude. The continuous measurement of the vacuum and its feedback to the speed of the vacuum pump results in the maintenance of the desired vacuum within the sizing tank.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: April 16, 1991
    Inventors: Robert T. DeCoursey, Mikel J. Messick
  • Patent number: 5005514
    Abstract: This invention is an apparatus and a method for applying a sweetener to a foodstuff. In the preferred method the frosted coating of sweetener has a snow-like appearance. The apparatus of this invention has a means for atomizing and spraying a sweetener solution onto foodstuff particles and a means for drying the sprayed foodstuff particles using compressed room temperature air.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: April 9, 1991
    Assignee: Nabisco Brands, Inc.
    Inventor: Marsha K. Verrico
  • Patent number: RE33603
    Abstract: Apparatus, for molding a seal in an annular metal casing, including core and surrounding mold insert members for engaging and holding the casing against deflection during molding.In .[.re.]. .Iaddend.embodiment the casing is tapered .[.and the apparatus is configured to accommodate the casing is tapered.]. and the apparatus is configured to accommode the casing shape.In a second embodiment concentric resilient members are provided to bias the core away from a .[.bold.]. .Iadd.mold .Iaddend.base member.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: June 4, 1991
    Assignee: Chicago Rawhide Manufacturing Co.
    Inventor: Keith W. Christiansen